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s2008m [1.1K]
3 years ago
7

CORRECT ANSWER GETS BRAINLIEST A frequency table of grades has five classes​ (A, B,​ C, D,​ F) with frequencies of ​4,11 ​,15 ​,

7​, and 1 respectively. Using​ percentages, what are the relative frequencies of the five​ classes?
Mathematics
1 answer:
ra1l [238]3 years ago
5 0

Answer:

A = 10.5%

B = 28.9%

C = 39.5%

D = 18.4%

F = 2.6%

Step-by-step explanation:

Add all the frequencies together = 38

  • 4/38 × 100 = 10.5%
  • 11/38 × 100 = 28.9%
  • 15/38 × 100 = 39.5%
  • 7/38 × 100 = 18.4%
  • 1/38 × 100 = 2.6%

10.5 + 28.9 + 39.5 + 18.4 + 2.6 = 100%

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Step-by-step explanation:

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2 years ago
Can someone help answer at least one? :) ty
Vika [28.1K]

Answer:

Step-by-step explanation:

a). Ratio of OP and RT = \frac{OP}{RT}

                                     = \frac{12}{3.6}

                                     = \frac{10}{3}

b). Since ΔOPQ ~ ΔRTS, their corresponding sides will be proportional.

    \frac{OQ}{RS}=\frac{OP}{RT}

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    OQ = \frac{10\times 4.5}{3}

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c). m∠P = m∠T = 60°

d). m∠Q = m∠S

    By applying angle sum theorem in ΔRST,

    m∠R + m∠S + m∠T = 180°

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    Therefore, m∠Q = m∠S = 94°

3 0
3 years ago
Which point on the number line best represents the location of root of 92.16
tatuchka [14]

Answer:

Point P

Step-by-step explanation:

9.59 is closer to 10 than 9, so we can safely say that points m and n cannot be correct. Point q can also not be correct, because it is to close to 10.

Therefore, answer is: Point P

5 0
3 years ago
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Katyanochek1 [597]

Answer:

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Step-by-step explanation:

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the two swimmers met at a distance of:
12×1
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6 0
3 years ago
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